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King M, Gottlieb D, Boucher D. Impact of regioregularity on the solubility parameters of poly(3‐hexylthiophene). JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1002/pol.20220235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- McKenna King
- Department of Chemistry and Biochemistry College of Charleston Charleston South Carolina USA
| | - Danielle Gottlieb
- Department of Chemistry and Biochemistry College of Charleston Charleston South Carolina USA
| | - David Boucher
- Department of Chemistry and Biochemistry College of Charleston Charleston South Carolina USA
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Ondansetron/Cyclodextrin inclusion complex nanofibrous webs for potential orally fast-disintegrating antiemetic drug delivery. Int J Pharm 2022; 623:121921. [PMID: 35714816 DOI: 10.1016/j.ijpharm.2022.121921] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 06/06/2022] [Accepted: 06/12/2022] [Indexed: 12/18/2022]
Abstract
Ondansetron (ODS) is an effective antiemetic drug which suffers from limited solubility and bioavailability during oral administration due to first-pass metabolism. However, these limitations can be mitigated through inclusion complexation with cyclodextrins (CDs). In this study, we have reported the electrospinning of polymer-free, free-standing ODS/CD nanofibrous webs (NW), a promising approach for developing a fast-disintegrating delivery system of an antiemetic drug molecule. Highly water soluble hydroxypropyl-beta-cyclodextrins (HPβCD) were used as both complexation agent and electrospinning matrix. The computational study revealed that the 1/2 (drug/CD) stoichiometry was more favorable compared to 1/1. The ODS/HPβCD NW was obtained with higher loading efficiency (∼96 %) compared to the control sample of ODS/polyvinyl alcohol (PVA) NW (∼80 %). The amorphous distribution of ODS raised by complexation and the highly water-soluble nature of HPβCD resulted into faster and better release profile and quite faster disintegration property (∼2 s) in artificial saliva than polymeric ODS/PVA NW. Here, ODS/HPβCD NW was generated in the absence of a toxic solvent or chemical to enable the drug loading in an amorphous state. From all reasons above, ODS/HPβCD NW might be a promising alternative to the polymeric based systems for the purpose of fast-disintegrating oral drug delivery.
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Boudjelida S, Djellali S, Ferkous H, Benguerba Y, Chikouche I, Carraro M. Physicochemical Properties and Atomic-Scale Interactions in Polyaniline (Emeraldine Base)/Starch Bio-Based Composites: Experimental and Computational Investigations. Polymers (Basel) 2022; 14:polym14081505. [PMID: 35458254 PMCID: PMC9029945 DOI: 10.3390/polym14081505] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 04/02/2022] [Accepted: 04/04/2022] [Indexed: 11/16/2022] Open
Abstract
The processability of conductive polymers still represents a challenge. The use of potato starch as a steric stabilizer for the preparation of stable dispersions of polyaniline (emeraldine base, EB) is described in this paper. Biocomposites are obtained by oxidative polymerization of aniline in aqueous solutions containing different ratios of aniline and starch (% w/w). PANI-EB/Starch biocomposites are subjected to structural analysis (UV-Visible, RAMAN, ATR, XRD), thermal analysis (TGA, DSC), morphological analysis (SEM, Laser Granulometry), and electrochemical analysis using cyclic voltammetry. The samples were also tested for their solubility using various organic solvents. The results showed that, with respect to starch particles, PANI/starch biocomposites exhibit an overall decrease in particles size, which improves both their aqueous dispersion and solubility in organic solvents. Although X-ray diffraction and DSC analyses indicated a loss of crystallinity in biocomposites, the cyclic voltammetry tests revealed that all PANI-EB/Starch biocomposites possess improved redox exchange properties. Finally, the weak interactions at the atomic-level interactions between amylopectin–aniline and amylopectin–PANI were disclosed by the computational studies using DFT, COSMO-RS, and AIM methods.
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Affiliation(s)
- Soufiane Boudjelida
- Laboratory LMSE, University Mohamed El Bachir El Ibrahimi, Bordj Bou Arreridj 34030, Algeria;
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy
| | - Souad Djellali
- Laboratoire de Physico-Chimie des Hauts Polymères, University Ferhat Abbas Setif-1, Setif 19000, Algeria
- Department of Chemistry, Faculty of Sciences, University Ferhat Abbas Setif-1, Setif 19000, Algeria
- Correspondence: (S.D.); (M.C.)
| | - Hana Ferkous
- Laboratoire de Génie Mécanique et Matériaux, Faculté de Technologie, Université de 20 août 1955 de Skikda, Skikda 21000, Algeria;
- Département de Technologie, Université de 20 août 1955 de Skikda, Skikda 21000, Algeria
| | - Yacine Benguerba
- Department of Process Engineering, Faculty of Technology, University Ferhat Abbas Setif 1, Setif 19000, Algeria;
| | - Imane Chikouche
- Laboratoire Croissance et Caractérisation de Nouveaux Semi-Conducteurs, Faculté de Technologie, Université Sétif 1, Setif 19000, Algeria;
| | - Mauro Carraro
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy
- ITM-CNR, UoS of Padova, Via Marzolo 1, 35131 Padova, Italy
- Correspondence: (S.D.); (M.C.)
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Alioui O, Benguerba Y, Alnashef IM. Investigation of the CO2-solubility in deep eutectic solvents using COSMO-RS and molecular dynamics methods. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113005] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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